hassle vs get at

hassle is a noun but get at is not a noun.

Word	Noun	Adjective	Verb	Adverb
hassle	Yes	No	Yes	No
get at	No	No	Yes	No

As verbs, get at is a hypernym of hassle; that is, get at is a word with a broader meaning than hassle:

Other hypernyms of hassle include annoy, bother, chafe, devil, get to, gravel, irritate, nark, nettle, rag, rile, vex.

hassle (noun)	get at (noun)
disorderly fighting
an angry disturbance

hassle (verb)	get at (verb)
annoy continually or chronically	cause annoyance in; disturb, especially by minor irritations
	reach or gain access to
	influence by corruption